At present, the domestic production of expandable graphite using two processes: chemical and electrochemical methods. In addition to two different oxidation step process, the deacidification, washing, dewatering, drying, etc. Other steps. Chemical method of most manufacturers Lacey quality graphite products for sale, can be reached GB10698-89 "expandable graphite" standard indicators Pingdu graphite prices to meet the bulk of the production of flexible graphite sheet material requirements and export supply standards . But low volatile (<10%) and production of special requirements of low sulfur content (<2%) of the product more difficult graphite, production technology, however. Pressure Installation of the Act applies to the next smaller diameter graphite bearing and temperature range is not the case. When using this method of installation to ensure absolute straight bearing and sleeve and pressure stability. Loose mounting method This installation method is only applicable to the next through the thin wall bearing load situation. When installing graphite sleeve bearings allow rotation in, in order to prevent transmission around, you can use a key to fix. Carbon graphite manufacturers | Weifang Sea Dragon Carbon Co. (certified) | graphite by Carbon Co., Ltd. Weifang Sea Dragon. Weifang Sea Dragon Carbon Co., Ltd. (www.longmentanye.com) Shandong Weifang, graphite and carbon products leader, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the North Sea Dragon carbon industry leadership with the staff warmly welcome all inquiries negotiations to create the North Sea Dragon carbon industry a better future.